How to turn off Auto rotation correcting on S110 - Script Writing - CHDK Forum
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How to turn off Auto rotation correcting on S110

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Offline nadavofi

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How to turn off Auto rotation correcting on S110
« on: 10 / May / 2014, 09:59:42 »
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It seems that ever since S90, canon still didn't realize people want it to be disable-able.

http://www.dpreview.com/forums/post/35501746

To clarify, I'm not talking about the play mode rotation, but the saved picture rotation.
Canon uses an orientation sensor to determine the camera's rotation state and saves the photo in the "correct" position. the problem is that sometimes one doesn't want it to be corrected.

In my case, we are flying with the camera stabilized and pointing to the ground.

From time to time the sensor decides it's a portrait or upside-down picture and rotates it... even though I for me it is the same rotation state as all the others...

Is there any way (CHDK way or another) to turn this sensor off or to manipulate it somehow so it would-not think nothing... just keep the pictures straight?

I will appreciate any kind of solution for this nuisance.  :blink:

EDIT: I'm shooting with S110  :D

Nadav
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Offline Microfunguy

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Re: How to turn off Auto rotation correcting on S110
« Reply #1 on: 10 / May / 2014, 10:22:11 »
You can certainly read orientation with PROPCASE_ORIENTATION_SENSOR, don't know if writing zero to it will set all photos to normal orientation.
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Offline srsa_4c

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Re: How to turn off Auto rotation correcting on S110
« Reply #2 on: 10 / May / 2014, 10:24:21 »
The orientation flag is just a flag, it's part of the exif data. You can either instruct the viewer you're using to ignore it, or batch-rewrite the exif data of your images (not sure how, perhaps exiftool is capable of doing that). There is another method that might work, but that requires CHDK modification and some prior research...
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Offline nadavofi

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Re: How to turn off Auto rotation correcting on S110
« Reply #3 on: 10 / May / 2014, 10:35:13 »
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The orientation flag is just a flag, it's part of the exif data

tried looking for it in the photo's exif - didn't see anything related.

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You can either instruct the viewer you're using to ignore it, or batch-rewrite the exif data of your images

Since my flow is completely automatic, I could use a script that fixes this flag if it's really does exist.

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Offline srsa_4c

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Re: How to turn off Auto rotation correcting on S110
« Reply #4 on: 10 / May / 2014, 10:47:36 »
Quote from: nadavofi on 10 / May / 2014, 10:35:13
Since my flow is completely automatic, I could use a script that fixes this flag if it's really does exist.
http://ninedegreesbelow.com/photography/exiftool-commands.html#orientation
You may need to replace the '1' with a different number (2?).
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